Home / 15,654.15-21,602.68-8,484.28

Finding the Fourth Proportional to 15,654.15, 21,602.68 and 8,484.28

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Solution

The fourth proportional to 15,654.15, 21,602.68 and 8,484.28 is: 11,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654.15 : 21,602.68 = 8,484.28 : x
  2. Step 2: Convert to fraction form
    15,654.15/21,602.68 = 8,484.28/x
  3. Step 3: Cross multiply
    15,654.15x = 21,602.68 × 8,484.28
  4. Step 4: Simplify right side
    15,654.15x = 183,283,110.65
  5. Step 5: Solve for x
    x = 183,283,110.65/15,654.15
  6. Step 6: Final answer
    x = 11,708.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.